lib/faraday/adapter/test.rb

@@ -283,11 +283,7 @@ module Faraday
           else
             stub.block.call(env, meta)
           end
-
-        # We need to explicitly pass `reason_phrase = nil` here to avoid keyword args conflicts.
-        #   See https://github.com/lostisland/faraday/issues/1444
-        # TODO: remove `nil` explicit reason_phrase once Ruby 3.0 becomes minimum req. version
-        save_response(env, status, body, headers, nil)
+        save_response(env, status, body, headers)
 
         @app.call(env)
       end

lib/faraday/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Faraday
-  VERSION = '2.5.2'
+  VERSION = '2.5.1'
 end